Book sewing machine



(No Model.)

4 Sheets- Sheet 1. C. A. LIEB.

BOOK SEWING MACHINE.

Patented Oct. 19, 1886 N. PETERS. rhmoLnhognpher. wammgmn. n c,

(No Model.) 4 Sheets-Sheet 2. C. A. LIEB.

BOOK SEWING MACHINE.

N0.v 351,328. i Patented 0013.19, 1886.

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4 Sheets-Sheet 3.

(No Model.)

C. A. LIEB. BooK SEWING MACHINE.

Patented Oct. 19, 1886.

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BOOK SEWING MACHINE. NQ. 351,328. Patented Oct. 19,1886.

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UNITED STATES PATENT OFFICE.

CHARLES A. LIEB, OF NEV YORK, N. Y., ASSIGNOR TO THE SHERIDAN BOOK-BINDERS SEWING `MACHINE COMPANY, OF SAME PLACE.

BOOK-SEWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 351,328l dated October 19,1886.

Application filed January 28, 1886. Serial No. 190,085.

(No model.)

To all whom z5 may concern:

Be it known that l, CHARLEs A. LIEB, a citizen of the United States, residing at New York, in the county and State of New York,

have invented new and useful Improvements in Sewing-Machines for Books, of which the following is a specification.

This invention relates to machines for sewing together the signatures"7 of books; and it consists in a mecha-nismjfor such sewing, and also for forming the channel for the band by punching a series of openings into the back of the signature being sewed, all in one operation. The novel features in the construction of the above mechanism are fully pointed out in the following specification and claims, and illustrated in the accompanying drawings, in which- Figure l is a section of my machine in the plane w x, Fig. 2. Fig. 2 is a section in the plane y y, Fig. l. Fig. 8 is a section on the line z z, Fig. 5. Fig. 4 is a section on the line x', Fig. 3. Fig. 5 is a section on the line y' y', Fig. 3. Fig. 6 is a section on the line z' z', Fig. 3. Fig. 7 is a side view of a portion of a signature, showing the channels cut by the needle-punches. Fig. 8 is a section on the line z z, Fig. 5, showing the signature-.carrier closed. Fig. 9 is a similar section showing the signature-carrier open.

Similar letters indicate corresponding parts.

In the drawings, theletter A designates the frame, to which are secured the bearings B for the rockvshaft C, on which the oscillating arms D are mounted. arms are formed bearings E, for the gudgeons a, Fig. 5,projecting from plates b, between which the signaturecarrier F is secured. In the example shown in the drawings, the plates b,with the signature-carrier F, are held in a vertical position during the oscillations ofthe arms D by guide-arm c, mounted on the gudgeon c, the free end of which carries an antifriction roll, d, which engages a stationary` cam, G, secured to the frame A. rlhe oscillating motion is imparted to the arms D by a bell-crank lever, H, pivoted to the frame at J', one end of which engages a crank, J, mounted on the 5o rock-shaft G,whi1e its other end is held in con- In the outer ends of these tact with a cam, K, mounted on the main shaft L, by a coiled spring, s, Fig. 5.

In operating my machine the signature to be sewed on is placed by the attendant on the carrier F when the latter is in the position indicated in dotted linesin Fig. l. By the mechanism above described the carrier is brought tothe position shown in full lines in said ligure against the stop-plate A', running across the machine and under the combined punching and sewing mechanism, in which position it is automatically held by a spring-bolt, e, Fig. 4, which is mounted in the stop-plate. ln this combined punching and sewing mechanism the needles f, which usually are pointed, are blunt and act as punches, passing through the signature and into the opening g, Figs. 3, 4, 8, and 9, in the upper edge of the carrier F, which act as dies, by which means a piece is cutout from the back of the signature, Fig. 7, of sufficient size to form a channel for the band. A groove is formed on each side ofthe needle above the eye, in which lies the needlethread, which in this machine forms the band for the book when the needle passes through the openings g in the carrier, by which means said thread is protected against chang or being cut by the sharp edge of the opening g. The needles are secured to a needle-bar, M, running across the machine, and to it are 8o connected rods B', having roller-studs at their lower ends, that engage grooves in the cams K and N, Fig. 2, which are of a proper shape to give the needle the necessary up-anddown and looping motion. 'The needles,which may 85 be secured to the needle-bar in any manner, pass through holes in the stop-plate A', which holes serve as guides when the needles move down, and as strippers when they move upward and out of the signature, preventing the 9o same from moving up with the needles. lThe tension C', the take-up D', and the shuttle E', all of which are of common construction, together with the needles, forman ordinary organized sewing mechanism, and I do not desire to confine myself` to the exact construction describedherein.

To'permit the trimming of the edges of the book after it is sewed, it is necessary that the shuttle-thread should not extend to the outer 10Q edge of the book, so as not to be out by thatv rier is so timed that it will go first one way as` the needles come down, and go back when the needles are down a second time. To effect this, the shaft O,which drives the shuttle-carrier h, is geared to the main shaft L in such a manner that the former will make one revolution while thelatter makes two. The shuttle carrier h is connected by a pivot, z', to one end of a lever, P, which is pivoted atj to -an oscillating arm, Q, while its other end is pivoted in a'sliding box which is guided in the ways Z. From the shuttle-carrier h extend rods m m, which are connected to the oseillat# ing arm by pivots n n, situated on opposite sides of the pivot j, while the connections between these rods and the shuttle-carrier h are formed by pivots" n n', situated on opposite sides of the pivot i, which connects the shuttle-carrier to the lever P. If the rods mmare made of rigid material, only one such rod is required; but if cords are used in place of the rigid'rods, both are needed. The oscillating arm Q is mounted on one end of a shaft,;o, which has its bearingin the standard R, secured to the main frame, while on the other end of this shaft is secured a crank, S, from which projects a stud or roller, 10, which engages the slotted end of a lever, T, turning on a pivot, q, extending from the standard R. Near t-he center of the lever T is mounted a roller, r, whichv is engaged by the groove in the cam U, mounted on the shaft O. It is obvious thatas the cam U revolves, the lever T will oscillate on its pivot and impart a similar motion to the arm Q, to which the lever P is pivoted.

This will cause the shuttle-carrier h, which is secured to this lever, to pass back and forth in a straight line, carrying the shuttle through the loops formed by the sewing mechanism in the usual way.

In the example shown in the drawings, in

which the needles act as punches, making it..

necessary to have dies to co-operate with these punches formed in the signaturecarrier, I make the latter of two parts or wings, F' F2, one of which is rigidly secured to the plate-b, Figs. 8 and 9, while the other is connected to the-same by the pivot a3. Between the wings FVand F2 is a recess, A2, in which the loops of the needle-thread are formed, andthrough which the shuttle is carried in order to form the stitch. NVhen the shuttle has passedl la new signature. i

stood that it is necessary to make the wlngs.

which then lies in the loops of the' needlethread, can be drawn out of the signature-carrier as the needle-thread is drawn up taut by the sewing mechanism. When this has been done, the signature-carrier is again closed and is free to recede to its outer position to receive It must, however, be underof the signaturecarrier movable only when dies for punching are formed in the same. When ordinary needles are used, both wings of the signature-carrier may be rigidly fastened to the plate b, andsuffcient space left between them to permit the drawing up of the shuttlethread. The shuttle rests at each end of its stroke to permit the back and forward motion out of the way of the arm b3 until it has passed said arm, when it will again fall outward by its own weight. Fig. 8 shows the needle ascending, the latch-plate in its outer position aoting on the arm 123, and the signature-carrier opened, in which 'position it will remainV until the armjd3 has reached the end of its upward stroke, when the arm b3 will slip off the lower ledge of the latch-plate, and signature-carrier Cbe closed by the action of the spring g3, ready for a new operation.

Theinner surface of the wing F of the nature-carrier is provided with recesses ainto which the needles pass as they come down, and which guard them from the shuttle as the latter passes through the signature-carrier. (See Fig. 3.)

One end of the needle-thread,which in thisl machine is the band onto which the signa- IIO tures are sewed, is secured to a block,V, and

as the needle recedes after the passage of the shuttle this thread is drawn taut by the takeup. 'The signature on the carrier is now attached to this band bythe shuttle-thread, and when the latter recedes the sheet will not be carried baeklwith it, but remain suspended from the band. Openings'bz, Figs. 3, 8, vand 9, in the side of the stop-plate serve as threadguides, through which the thread passes on its way to the needle.

After the needles have performed their sewing operation,and before the signature-carrier can move to its outer position, it is necessary -to release the latter by withdrawing the springd2 and the tumbler c2 will be in the position shown in dotted lines in Fig. 4. As the upward motion of the needle-bar continues, this tumbler, which is held in that position by the pin e, will press against the nose f2 on the spring-bolt, forcing the same back and out of connection with the plate b of the signaturecarrier, leaving the same free to the action of the bell-crank lever H. It will be understood from the drawings that when the needle-bar descends the tumbler will strike the nose f2, and as it is free to turn in that direction it will fold in and not act on the bolt.

What I claim as new, and desire to secure by Letters Patent, is-

l. In a sewing-machine for books, the combination, with the signature-carrier and the dies formed therein,otl punches constructed to co-operate with said dies, substantially as shown and described.

2. The combination, with the punches having needle-eyes formed therein,ota signaturecarrier made in two sections and having dies formed therein, and mechanism for opening and closing the same, substantially as shown and described.

3. The combination,with the sectional signature-carrier having the dies formed therein, of punches construced to co-operate with said dies and having needle eyes and thread-protecting grooves extending upward from the needle-eyes on both sides of the punches, substantially as shown and described.

4. The combination,with the sectional signature carrier having the diesformed therein, of punches constructed to cooperate with said dies and provided with needle-eyes formed in said needle-punches,and a reciprocating shuttle, substantially as shown and described.

5. The combination, with vertically-reci proeating needles and the reciprocating signaturecarrier having openings for the passage of the needles, of a swinging lever having at its upper end an attached shuttle-carrier, a vertitically-movable slide to which the lever is pivoted, and mechanism, substantially as described, for operating the lever and moving its upper end and the shuttle-carrier in a true horizontal line.

6. The combination, with the signature-carrier having the dies formed therein, of means, substantially as shown, for imparting to the signature-carrier a reciprocating motion, the stop-plate A', and the punches constructed to co-operate with the dies in the signaturecarrier, substantially as shown and described.

7. The combination,with the sectional signature-carrier having the dies formed therein, of means, substantially as shown, for impartfor the punches, substantially as shown and described.

9. The combination,with the sectional signature-carrier having the dies formed therein, of means, substantially as shown, for imparting to the signature-carrier a reciprocating .motion, the stop-plate A', having threadguides b2, needle-punches constructed to cooperate with the dies in the signature-carrier, and guides for the punches.

10. The combination, with the sectional signature-carrier having the openings g, forming dies, and provided with the longitudinal recess A2, and vertical recesses a2, forming needle-guards, which are open to said longitudinal recess, of needle-punches constructed to operate With said dies, a shuttle, and mechanism, substantially as described, for imparting to the same areciprocating motion through said longitudinal recess.

1l. The combination, with a signature-carrier and the gudgeons projecting from its sides, of reciprocating arms D, engaging said gudgeons, the arms c, lirmly secured to said gudgeons, projections d, formed onsaid arms, and the cam G, constructed to engage said projections, substantially as shown and described.

l2. The combination, with the signaturecarrier, ot" the stop-plate, the latch constructed to retain the signature-carrier in its inner position, and the needle-bar arranged to release said latch, substantially as shown and described.

13. The combination, with the sectional signature-carrier, the dies formed therein, the needlepunches, the bar supporting said needle-punches, and the reciprocating shuttle, of the latch-plate c3 and the arm b3, extending from the movable wing F2 of the signaturecarrier, substantially as shown and described.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

CHARLES A. LIEB. [L s.]

Witnesses:

WILLIAM MILLER, E. F. KAs'rnNHUBER.

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